Software Engineer Intern Interview Questions

9,747 software engineer intern interview questions shared by candidates

OA-> Hard question combining Dijkstra's algorithm and Dynamic Programming. I honestly think it was leetcode hard or worse. You need to have done competitive programming to have cracked it on your first attempt within the time limit.
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Software Engineer Intern

Interviewed at Optiver

3.7
Dec 26, 2025

OA-> Hard question combining Dijkstra's algorithm and Dynamic Programming. I honestly think it was leetcode hard or worse. You need to have done competitive programming to have cracked it on your first attempt within the time limit.

You are given two non-empty linked lists representing two non-negative integers. The most significant digit comes first and each of their nodes contains a single digit. Add the two numbers and return them as a linked list. You may assume the two numbers do not contain any leading zero, except the number 0 itself. Example: Input: (7 -> 2 -> 4 -> 3) + (5 -> 6 -> 4) Output: 7 -> 8 -> 0 -> 7
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Software Engineer Intern

Interviewed at Intel Corporation

3.9
Oct 7, 2020

You are given two non-empty linked lists representing two non-negative integers. The most significant digit comes first and each of their nodes contains a single digit. Add the two numbers and return them as a linked list. You may assume the two numbers do not contain any leading zero, except the number 0 itself. Example: Input: (7 -> 2 -> 4 -> 3) + (5 -> 6 -> 4) Output: 7 -> 8 -> 0 -> 7

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